Conduct Specified Testing of Gas Network Components and Assets

Business Sectors (Suites): Gas Network Construction Operations
Developed by: Energy & Utility Skills
Approved on: 01 Mar 2023


​This standard is about testing gas network components and assets in accordance with industry standards and expectations. 

It can apply to any type of fuel gas or combinations of fuel gas including, but not restricted to, natural gas, LPG, blended or 100% hydrogen.

It includes making sure the manner in which tests are conducted and recorded meets the standards of quality assurance set by the organisation, following safety requirements, interpreting test results, dealing with problems during testing or with results and recording and documenting test results. 

This standard is for those responsible for managing or controlling operations during gas network activities. 

Performance criteria

You must be able to:

1. work safely in accordance with health and safety and environment regulations and legislation 
2. carry out site-specific risk assessments at appropriate times and apply the control measures identified in them 
3. select, check condition, use and store the appropriate PPE 
4. secure test sites from possible third-party interference and trespass 
5. use testing tools and equipment in accordance with work instructions and manufacturers specifications 
6. make sure that testing equipment is functioning in accordance with system operating requirements and parameters 
7. follow current drawings, plans and specifications for testing activities 
8. calculate specified test timings and levels 
9. anchor components and assets to withstand test pressures 
10. set up and carry out the tests in line with work instructions and within agreed timescales 
11. carry out all testing in compliance with approved industry and company procedures 
12. follow approved industry and company procedures to identify and solve problems that arise during testing 
13. monitor, interpret and review test results to establish that system performance is in accordance to specifications, performance parameters and codes of practice
14. record test activity results and complete test record documents following reporting systems and using documentation in accordance with company procedures and requirements

Knowledge and Understanding

You need to know and understand:

​1. The main responsibilities of the employer and employee for health and safety and environmental protection that are relevant to testing activities and how to comply with them 

2. how and when to carry out and review risk assessments 
3. the company reporting lines, roles, responsibilities and levels of authority 
4. the identification and application of safe procedures for handling hazardous and non-hazardous materials 
5. organisational accident recording and reporting procedures 
6. the range and use of personal protective equipment for the work activity and procedures for checking PPE is fit for purpose including ear defenders
7. industry recognised methods for securing sites 
8. statutory, organisational and emergency reporting procedures 
9. the potential dangers and hazards from stored energy and low, medium,  intermediate and high pressure systems 
10. different pressure regimes and associated methods for testing and recording 
11. how to calculate specified test timings and levels 
12. the importance of adequate anchorage during testing procedures and how to achieve it
13. how to use the types of test equipment, including those used in pneumatic and hydraulic testing 
14. the use of relevant pressure gauges, and the importance of using calibrated and certified equipment 
15. specifications of system performance  and codes of practice and how to interpret test results against them
16. the effect of atmospheric pressure and temperature variance on test results on components and assets 
17. the potential consequences of test failure including the protection of personnel and the environment and how to remediate them


Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

01 Mar 2026





Originating Organisation

Energy & Utility Skills

Original URN


Relevant Occupations

Gas Network Construction

SOC Code



gas, LPG, hydrogen, network, gas network, testing, assets, pressure, pressures, construction, operations, interpret, test results, test, results, recording, documenting